Stictocardia

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Stictocardia
Stictocardia tiliifolia

Stictocardia tiliifolia

Systematics
Nuclear eudicotyledons
Asterids
Euasterids I
Order : Nightshade (Solanales)
Family : Bindweed family (Convolvulaceae)
Genre : Stictocardia
Scientific name
Stictocardia
Hallier f.

Stictocardia is a plant genus in the family of wind plants (Convolvulaceae). It includes about twelve species.

description

Strictocardia species are perennial climbing plants. The up to 4 meters long stems are downy hairy, but later bald, the older stems have a slightly flaking bark . The stalked leaves are heart-shaped, pointed towards the front and with entire margins. The upper side of the leaf is hairless, on the underside there are short, black, glandular trichomes .

The flowers are single or up to three in zymose inflorescences . The hermaphrodite flowers are radially symmetrical with a double flower envelope . The sepals are almost equally shaped, circular and covered with black, glandular trichomes. Later they become leathery and surround the fruit. The crown is funnel-shaped, red or scarlet to purple-red in color. The coronet is usually entire. The stamens do not protrude beyond the crown. The stamens are hairy glandular at the base, upwards they are thread-like. The anthers are elongated. The pollen grains have pores (round to oval apertures) over the entire surface (pantoporate), spherical and prickly. The ovary is bilobed and has a stylus that is longer than the stamens. It ends in a head-shaped scar that is divided into two spherical parts .

The fruits are not open, thin-walled and surrounded by enlarged sepals.

Systematics and distribution

The genus Stictocardia was established in 1893 by Hans Gottfried Hallier .

Phylogenetic studies have shown that the stictocardia form a monophyletic clade , but are placed within the morning glory ( Ipomoea ).

The original distribution area of ​​the genus Stictocardia extends from Africa to Malaysia. The most common species, Stictocardia tiliifolia , is also a neophyte in the New World .

There have been about twelve types of Stictocardia since 2004 :

Individual evidence

  1. a b c d e f g h i j k l m n o p Rafaël Govaerts (Ed.): Stictocardia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 14, 2015.

literature

  • Daniel F. Austin: Flora of Panama, Part IX: Family 164. Convolvulaceae . In: Annals of the Missouri Botanical Garden , Volume 62, Pages 157-224.
  • Paul S. Manos, Richard E. Miller, Paul Willson: Phylogenetic Analysis of Ipomoea, Argyreia, Stictocardia, and Turbina Suggests a Generalized Model of Morphological Evolution in Morning Glories. In: Systematic Botany , Volume 26, Issue 3, 2001, pages 585-602.
  • Daniel F. Austin, E. Eich: Synopsis of Stictocardia with another Madagascan species, S. mojangensis (Convolvulaceae). In: Willdenowia , Volume 31, 2001, pp. 79-85. DOI: 10.3372 / wi.31.31106

Web links

Commons : Stictocardia  - collection of images, videos and audio files